Drive



K. SCHElNER.

FRICTION CLUTCH DRIVE.

APPLICATION FILED NOV-7,1918.

1,310,967. Patented July 22,1919.

$51 axiom 21, y. 446% THE COLUMBIA PLANOURAPH c0., WASHINGTON, n. c.

retention-crimson DRIVE.

Specification of Letters Patent.

Patented July 22, 1919.

Original applieation fil ed November 17 ,1917, Serial No. 202,654. Divided and this applicaton filed N ovem- To all whom itmay'c0ncerm1 f Be itknown that IQKARL ScHEINER, a citize'n of theUnited States, residing at Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Friction-Clutch Drives,oii which the following is a specificat on.

This invention relates to'improvementsin friction clutches, such as are used for'trans mitting rotary motion from a. rotatable'dmw' ingelement to a rotatable driven element.

VOn'e' of the principal objects of this inventionisto'provide 'a friction clutch capable of automatic engagementwhereby the driven element is rotated continuously with -the driver in one direction only.

drive for each Wheel Another object is to provide a friction clutch which willpermit the driven eleinent'to rotateat a'higher speed than the driving ele1nent,;other objects being to provide a friction clutch comprised of few and simple parts which are relatively inexpensive to'manufacture, plain turning operation being only required in their construction and finish. V y p The purpose of the present invention is particularly to provide a clutch adapted for use in connection With the driving axle and wheels of automatically propelled vehicles, as automobiles, trucks and the like, the driving being accomplished in such vmanner that the outer corners, may rotate at a higher rate of speed than the inner Wheel, which, at that time is acting to propel the vehicle, this form of a clutch dispensing with differential gears and providing an independent, positive from a common axle, the subject matter of the present application being disclosed in a co-pending application for rear drive for automobiles, filed November 17, 1917, Serial No. 202,654, of which this is a division.

The objects are attained by the novel construction and combination of partsjhereinafter described and shown in the accompanying drawing, forming a material part of this specification, and in which: 7

Figure l is a partial side elevational and sectional view, showing a clutch made in accordance with the invention, the section benates a fractional wheel, when the vehicle-is turning be! 1918. 7 Serial No. 262,091.

ing taken substantially on line 11 of Fig.

2, and, Fig; 2 is a transverse sectional "iew on line 2-2 of F ig. 1.

'In these drawings, the numeral 20 taken desigportion of a conventional type of axle, driven by any of the usual power transmission devices by a suitable motor connected withthe velncle.

A portion of the axle is coned, near its ends as at 21, and extending outwardly therefrom are the stems 22 upon which are engaged anti-frictional bearings 23, mounting a sleeve 24 to which may be aflixed the wheel hubs 25. A circular plate 27 is formed integrally with the sleeve 24, and integral with the plate is an annular ring 28, having on its periphery a brake element 30, maintained in position by the spaced flanges 31 and 32, extendingoutward from the peripheral ed 'es of the ring 28 at its side, the brake element having the usual encircling band 33 connected with the brake controlling devices of the vehicle.

Als formed integrally with the flange 27 is another annular ring 35, extending outward concentrically with the ring 28 but to a lesser distance, a space 38 being left therebetween. Secured on the coned portion 21, of the axle 20, by keys40 is a hub 41, held in addi tion by the nuts 42 in such manner that the hub is substantiall Y rigid with the axle. Formed with this hub is a disk 60, having a thickened rim 61, the enlarged portion extending oppositely to the rings 28 and 35, the last named ring entering an annular recess 62, formed in the rim 61, the enlargement being recessed or undercut on both sides, of the recess 62, forming chambers 63 and 64. Arranged at uniformly spaced intervals Within the chambers are elongated cams 65 having extending pins 66 which pass through suitable drilled openings in the rim extensions so that the cams are freely revoluble within the chambers 63 and 64.

The cam elements 65 are substantially oval in cross section, while the pins 66 are arranged eccentrically in the larger or base portion of the cams, Which are so spaced and arranged as to make peripheral contact with 63 and 64:, the construction being clearly shown in the drawing.

higher rate of 7 speed copies of thisrpatent 'inay be obtainedqfor In operation,power being transmitted to; the axle 20, the rim 61 of the disk 60 iscaused to rotate, due-to. the rigid'engage. ment of its hub with the axle, carryingthe plurality of paired cams 65, which, due to their shape, and the pressure ofthe springs 68, are caused to impinge tightly upon the surfaces of the ring 35, rotating the same in an obvious manner, together with plate .27 1 and attached parts.

. From the foregoing, it will be apparent that when the vehicle is moving in a circle, the outer wheelmust necessarily move at a than the inner wheel, which, at that time, is receiving transmitted power from the vehicle axle andthe outer wheel, by reason of its more rapid action,

forces the ring 35 bet-ween the cams, such movement belng permitted,

due to the frictional sliding contact so that either wheel may be used as the driver accordingly to which direction the vehicle is moving in its curved path.

It is further to be pointed out that the construction is such that all'of the several main parts may be formed by plain circular turning operations, thereby eliminating the expense of milling or shaping operations and reduces spondingly. It may also be pointed out that wear, occurring upon the ring 35 will be substantially uniform, while the shape of the cams and the pressure of the springs provides efiicient means for taking up any wear which may occur between the parts in contact. 1

'It is to be understood that the foregoing the cost of manufacture corredescription and drawings are to be regarded as illustrative and are subject to such modifications as practice may requireregarding the specific shape of the cams, connections between the cam carrying element and the axle, etc.., and'in-iactthe entire construction limited only by the claims.

' Having thus described my invention what I. claim as new, and desire'to secure by Let: ters Patent is: 4 l

1. In a power transmitting device, the

combination with the driving spindle and a rotatable element revoluble thereon, of a disk fiXedupon said driving spindle, a rim formed with, said" disk, saidrim containing annular concentr c recesses, pa1rs of opposed cams eccentricallymounted in said recesses,

2; In a power transmitting device, "the combination with the driving spindle and a rotatable element revoluble thereomof a disk fixed upon said. driving; spindle, a rim having an enlargedpart formed with sajidjdisk, said I I rim containing annular concentric passages or recesses,- pairs of opposed cams eccentri j cally m'ountedfin said krecesses, extending pins in said cams passing through the openings in said rim, an annularly flanged ring extend-- ing integrally from said, rotatable element, said ring being'received betweemo-pposed cams, and, bent, fiat spr ngs secured in proximit-y to thesaidfpins upon the inner adjacent surfaces of the-recesses for. causing said cams to turn upon their eccentric ,rnountings and impinge upon saidI ring.

In testimony whereof I have affiKed' my signature; a i i KARL SGHEI'NER:

five cents each, by addressing the commissioner ofiPatents, Washington, D. 6;!" 

